Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-aa88ff80-10fb-11f0-8a80-000d3a02ac24

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

8fd26086

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-f328f9a3-abe1-4d4a-99fc-a5da255d6986

Comm: tcp://127.0.0.1:45571	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:41037	Total threads: 1
Dashboard: http://127.0.0.1:41029/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:42599
Local directory: /tmp/dask-scratch-space/worker-81c0ked6

Worker: 1

Comm: tcp://127.0.0.1:42513	Total threads: 1
Dashboard: http://127.0.0.1:41587/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34779
Local directory: /tmp/dask-scratch-space/worker-oxiiiakt

Worker: 2

Comm: tcp://127.0.0.1:42241	Total threads: 1
Dashboard: http://127.0.0.1:41755/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34013
Local directory: /tmp/dask-scratch-space/worker-nfr1uq52

Worker: 3

Comm: tcp://127.0.0.1:40719	Total threads: 1
Dashboard: http://127.0.0.1:45293/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:44957
Local directory: /tmp/dask-scratch-space/worker-3qhj8zo0

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)